<template>
  <div id="tag">
    <el-row>
      <el-tag>标签一</el-tag>
      <el-tag type="success">标签二</el-tag>
      <el-tag type="info">标签三</el-tag>
      <el-tag type="warning">标签四</el-tag>
      <el-tag type="danger">标签五</el-tag>
    </el-row>
    <hr>
    <el-row>
      <el-tag v-for="tag in tags" :key="tag.name" closable :type="tag.type">{{tag.name}}</el-tag>
    </el-row>
    <hr>
    <el-row>
      <el-tag v-for="tag in dynamicTags" :key="tag" closable :disable-transitions="false" @close="handleClose(tag)">{{tag}}</el-tag>
      <el-input class="input-new-tag" v-if="inputVisible" v-model="inputValue" ref="saveTagInput" size="small"
      @keyup.enter.native="handleInputConfirm" @blur="handleInputConfirm"></el-input>
      <el-button v-else class="button-new-tag" size="small" @click="showInput">+ New Tag</el-button>
    </el-row>
  </div>
</template>

<script>
export default {
  data () {
    return {
      tags: [
        { name: '标签一', type: '' },
        { name: '标签二', type: 'success' },
        { name: '标签三', type: 'info' },
        { name: '标签四', type: 'warning' },
        { name: '标签五', type: 'danger' }
      ],
      dynamicTags: ['标签一', '标签二', '标签三'],
      inputVisible: false,
      inputValue: ''
    }
  },
  methods: {
    handleClose (tag) {
      this.dynamicTags.splice(this.dynamicTags.indexOf(tag), 1)
    },
    showInput () {
      this.inputVisible = true
      this.$nextTick(_ => {
        this.$refs.saveTagInput.$refs.input.focus()
      })
    },
    handleInputConfirm () {
      let inputValue = this.inputValue
      if (inputValue) {
        this.dynamicTags.push(inputValue)
      }
      this.inputVisible = false
      this.inputValue = ''
    }
  }
}
</script>

<style>
  .el-tag + .el-tag {
    margin-left: 10px;
  }
  .button-new-tag {
    margin-left: 10px;
    height: 32px;
    line-height: 32px;
    padding-top: 0;
    padding-bottom: 0;
  }
  .input-new-tag {
    width: 90px;
    margin-left: 10px;
    vertical-align: bottom;
  }
</style>
